Improvement in horse potato-forks



UNITED STATES PATENT OFFICE.

GEORGE o. CLARK, 0E FREEHOLD, NEW YORK.

IMPROVEMENT IN HO RSE POTATO-FORKS.

\ Specification forming part of Letters Patent No. 176,838, dated May 2,1876 {application filed September 11, 1875.

To all whom it may concern:

of my improved machine, taken through the line 00 m, Fig. 2. Fig. 2 is atop view of the same.

Similar letters of reference indicate corresponding parts.

The invention consists in the construction and combination of parts,which will be hereinafter fully described in connection with thedrawing, and then pointed out in the claim.

A is the tongue, which is attached to the cross-bars of the frame B. Tothe rear ends of the side bars of the frame B are attached knees O, tothe lower ends of which are pivoted the ends of the shaft or head D. Theshaft or head D is made in two parts, which are bolted together, and in'the adjacent faces of which are formed notches to receive the middleparts of the teeth E, which are thus clamped between the parts of thesaid head D. The teeth E, at the opposite sides of the head D, are bentin opposite directions, to keep them from longitudinal movement, and togive them somewhat the shape of a scoop- 1 shovel, bringing them intobetter position for doing their work. F are the handles, the lower endsof which are pivoted to the journals of the head D, and their upper endsare connected by a cross-bar, G. To the handles F, near their outerends, are pivoted two bars or blocks, H, to the lower ends of which isattached a cross-bar, I, which is designed to rest upon the upper sideof the ends of the rear row of teeth E, and prevent the head from beingrevolved by the.resistance of the soil. To the middle part of thecross-barI is pivoted a rod, J, the forward end of which plays looselyin an eye or keeper, K, attached to the under side of the rear cross-barof the frame B. To

the rod J, a little in the rear of the eye or keeper K, is attached across-pin, L, which, when the handles F are raised, strikes against saideye or keeper K, and pushes the crossbar I off the teeth E, allowing thehead D to revolve. To the pivots of the bars or blocks H are pivoted theupper ends of two stop-bars, M, the lower ends of which rest upon theend parts of the head D, and strike against theinclined stop-plates Nattached to the opposite sidesof the ends of the headD, to hold itsteady when the fork is at work, and prevent the said head from rcvolving any farther than a half-revolution each time.

Having thus described myinvention, I claim as new and desire to secureby Letters Patent- The combination of the rake-head D, composed of twoparts having grooves in their adjoining faces, withthe rake-teeth E,having straight middle portions, and bent or curved ends, as and for thepurpose set forth.

GEORGE 0. CLARK. Witnesses:

RODMAN DODGE, M. E. DODGE.

